The percentage of patented invention drugs meets the requirements of novelty, creativity and practicality. The conditions required to apply for a drug patent are: the drug must be novel, creative and practical. Drugs generally belong to invention patents. The Patent Law stipulates that inventions granted patent rights must be novel, creative and practical. Article 22 of the "Patent Law of the People's Republic of China" stipulates that inventions and utility models for which patent rights are granted must possess novelty, creativity and practicality. Novelty means that the invention or utility model does not belong to the prior art. No unit or individual has filed an application with the Patent Administration Department of the State Council for the same invention or utility model before the filing date, and it has been recorded in the patent application documents or announced patent documents published after the filing date. Creativity means that compared with the existing technology, the invention has outstanding substantive features and significant progress, and the utility model has substantive features and progress. Practicality means that the invention or utility model can be manufactured or used and can produce positive effects.